Mine car



H. P. FIELD Feb. s; 1927.

MINE: CAR

Filed Jan.l4, 1926 2 Sheets-Sheet 1 mi R n XxWMMNHHWH. NNlllmm. -n $0 Nw0. mf UIN# HH nu H H H u n HH MNNIMMMMHUIMMMH un un VNLMV H. P. FIELDFeb. s, 1927.

MINE CAR Filed Jan.14, 1926 2 sheets-sheet v2 Patent Feb. 38, i9?.

HENRY P. FIELD, OF BERWICK, PENNSYLVANIA, ASSIGNOR T ERICAN Clt ANDFOUNDRY COMIPANY, 0F NEW YORK, N. Y., CORPORATION' NEW JERSEY.

MINE GAR.

`Application led January 14, 1926. Serial No. 81,256.

Fig. 1 is a partial view partly in side elevation and partly in verticalsection taken on the line 1-1 of Fig. 2 of a mine car constructed inaccordance with this invention, one of the wheels being removed to showa journal box more clearly;

Fig. 2 is a partial top plan view of the structure shown in- Fig. l,parts bein broken away to show other'parts more clear y;

Fig. 3 is a partial vertical section taken on the line 3-3 of Fig. 2 andshowing in full lines a door in dropped position and the bil lockingmeans operated thereby in thereleased position and showing in broken.lines the doors closed and the locking means 1n .locking position, and

Fig; 4 is a partial transverse vertical section taken on the line 4 4 ofFig. 1, parts being broken away to show other parts more clearly. j l

This invention relates to mine cars of the type having floors composedof dumping doors f so arranged that the dumping operation of Aclosingmovement of one door of a car o'f the type described to releaseand-lock, respectively, an adjacent door of the car.

In the drawings the invention is shown applied to a mine car havinglongitudinal sills 1 connected at their ends by end sills 2 which aresecured thereto by the angles 4, both the longitudinal sills 1 and endsills 2 bein formed of channel members and positione with their .fiangesprojecting outwardly. Against the outer faces of the webs 6 of thelongitudinal sills 1 are placed journal boxes 8 having fianges 10bywhichthey are secured to the upper fianges 12 and lower flanges 14 ofthe longtitudinal sills 1. The journal boxes are provided with openingswhich aline with openin s in the webs 6 of the sills 1 and which receivetherein the axles 15 and 16 upon which are mounted the wheels 18. Theupper flanges 12 of the lon gitudinal sills 1 extend outwardly and up-vwardly and have secured thereto plates 9 which are bent to form upwardlyand out-` The'. end sills 2 are provided with..

Secured to thelower anges 14 of the sills 1 adjacent one end sill andbeneath the jour- 1 nal boxes 8 are brackets 32 in which are pivotallymounted angular shafts 34. To the shafts 34 hinges 37 securecurved dropdoors 36, 38 and 40 having reinforcing angles 39 along their side edgesand.i flanges 41 along their hinge edges, the flanges 41 lyingsubstantially in planes through the axes of the shafts 34. The door 36is mounted on a shaft 34 beneath one pair of journal boxes and has itsfree edge adjacent one end sill;

,the door 38 is pivotally mounted on a shaft 34 beneath the other pairof journal boxes and having its free edge adjacent the rst shaft 34;andthe doorl 40 is mounted on a shaft 34 (not shown) adjacent the otherend sill and has its free edge adjacent the second shaft 34. j

Pivotally mounted on the axles 15 and 16 by the hinge straps 50 are theangle locking plates 52 and 54 having door engaging portions 53 and 55,respectively, and flanged wear plates 56 which are engaged bycams 58 and6() fixed on the door supporting shafts 34. The plates 52, 54 serve asaprons to exclude the car lading from between adjacent doors 36, 38, 40,and to protect the lock or latch actuating cams 58, 60. rEhe free edgeof the door 36 is provided with longitudinally projecting lugs 62 whichare engaged by locking means 64 pivotally mounted on the end plate 26and projecting between the end plate 26 and the end sill 2. Extendingfrom side to side of the car and ...secured to the webs '6 of the sills1 are angle ties 66 having anges 68 by which they are secured to thewebs 6, the ties 66 serving as hoods over the axles 15, 16 and the upperedges of the aprons l5 2 and 54 to exclude the car lading from betweenadjacent doors and vto protect the locking means lfrom the car lading.

In thev operation of this device, considering the doors locked in closedosition and the car moving towards the rig t, the locking means 64 willbe operated by means lof operating cams placed at the side ,of-the ptrack, as in Patent No. 1,534,185, Nichols, Apr. 21, 1925, to disengagethe lugs 62 on the door 36 and permit the door 36 to drop and operatethe cams 58 to release the locking means 52. Withdrawing the cams 58from in back of the locking means 52 will permit the locking means .52to be operated by the v-load on the `door 38 causing the locking means52 to be disengaged from the door 38 and allow the door to drop andoperate the cams 60, withdrawing the cams 60 fromin back of the lockingmeans 54. VVithdrawing the cams from in back of the locking means 54will permit the load on the door 40 to operate the locking means 54 torelease posi- 'tion permitting the door 40 to drop. Gontinued movementof the Carlin the same direction causes the door 40 to engage a track`obstruction as in the patent mentioned above which raises the door'toits normal osition.

v Further .movement of the car in t e same direction causes the door 38to engage :the saine obstruction bringlng the dooi` 38 toits normalposition and operating the cam() to engage the locking fmea'ns '54`andforce the locking means into door retaining position beneath the freeedge .ofthe doom-10.

Further movement of the' car inthe sanifeV direction causes the door 36toeng'age the same obstruction raising the"do'o'r to its normal orclosed position lvand. operating the cams 58'to engage the locking means52 and force the lockmg means to its door supporting position beneaththe free edge ofthe door 38. The door 36 when raised to its normal posi--ti'on brings the lugs 62 into engagement with.

the looking'means 64 where they are retained until the locking means ,64is again operated.

What is claimed is: 1. In a mine car, longitudinal sills, a

'shaft rotatably mounted on said sills, a door fixed onsaid shaft, asecond door, locking 'means forsaid second door and cams mounted on saidshaft and engaging said locking means to hold said locking means insupporting relation to said second door.

2. In a mine car, longitudinal sills,`a shaft rotatably mounted on saidsills, a drop door,

.hinges connecting said door and shaft and operating said shaft withsaid door, a secp ond door, locking means for said second door and camsmounted on' said. shaft between said hinges to operate said lockingmeans.

3. In av minecar, longitudinal sills, 'axles supporting said` sills, ashaft `rotatably mounted on said sills, a drop door, hinges connectingsaid door and shaft and operatin, 2,'-said shaft with saiddoor, a seconddoor pivotally mounted on said sills, locking means for said second doorpivotally mounted on an axle and projecting between said doors and a cammounted on said shaft between said hinges an'd operating said lock- 4ing means'to hold said second door in closed position when said firstdoor is closed.

4. In a mine car, longitudinal sills, axles supporting said sills, ashaft rotatably mountedon said sills, a drop door, hinges connectingsaid door-and shaft and operating said shaft with said door, a seconddoor piv- 1 otally mounted on 'said sills locking` means for said4second door pivotally mounted on an axle and cams fixed on said shaftand engaging said locking means.

5. In a mine car, longitudinal sills, a shaft rotatably mounted on saidsills, a drop door,'hinges. connecting said door'- and shaft l andoperating said shaft with said door, a

second door, pivotally mounted locking means for holding said seconddoor in close position and a cam fixed on said shaft and operating saidlocking means to holding: po-

y sition.

6. Ina mine car, longitudinal' sills, a shaft rotatably mounted on saidsills, adoor iixed Qn said shaft, a second door, locking means I,

for said second door and cams mounted on said shaft andxpro'ectingbeyond said first door for operative y engaging said,locking means.'

7 In a mine car, longitudinal sills, a shaft rotatably mounted on saidsills, a door .fixed on said shaft, a vsecond pivotally mounted saidsecond door projecting between'said doors and a cam rot-ating with saidshaft and operatively engaging said locking means. 8. In a mine car,longitudinalsills, a door supporting shaft rotatably mounted on said 10oI door, pivotally'mounted locking meansfo'rV sills, a drop door havingan upwardly pro- 4 `and said door supporting shaft and cams fixed onsaid shaft and projectingv beyond said first door to operatively engagesai-d locking means and hold said locking means in supportingengagementwith said second door when said lirst door is in the closed po-` sition.n

9. In a mine car, I a rotatably mounted shaft, a drop door fixed on saidshaft, a second drop door, locking means for said second door and meansrotating" with said shaft to operate said locking means.

10. In a' mine car, a dropdoor, a shaft supporting said door androtating thererio Lemme with, a second drop door and locking means forsaid second door, said shaft operatively engaging said locking means.

- 11. n a mine car, a drop door5 a shaft supporting said door androtating therewith, a second drop door and locking means for said seconddoor, said locking means being operated .to engage said second door bythe rotation of said shaft.

second drop door, and locl ing-means, said .shaft having projectingmeans for engaging said lecking means with. said second door.

13.-.n a mine car7 a drop door, a shaft across the car supporting saiddoor, a see ond dro door, and looking means for sain' second ooroperated ley rotation of said shaft, Vbut mounted separately therefrom.i En Witness whereof I have hereunto set 20 my hand. MERY P. FEM).

